Supervisor Mark Farrell on fighting homelessness

San Francisco spends about $165 million each year on homeless services, according to a report requested by city Supervisor Mark Farrell. In an attempt to understand the cost effectiveness of those programs, Supervisor Farrell organized a series of eight hearings this spring, focused on homeless services in San Francisco. Farrell sat down with KALW's Ben Trefny to talk about what came out of those hearings.